JP2003093280A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a highly usable vacuum cleaner that can be originally raised even if the cleaner body falls during cleaning. SOLUTION: The cleaner body 27 has a substantially columnar or substantially spherical outer shape, and a pair of wheels 36 as traveling means of the cleaner body 27. The center of gravity of the cleaner body 27 is the cleaner. The wheel 36 is provided on the cleaning surface side from the center of an arc 27d on the extension of the outer shape of the surface orthogonal to the transition direction of the main body 27, and the wheel 36 is provided with an arc 27d on the extension of the outer shape.
Cleaner main body 2 so as to be located within an arc on the extension of
7, the vacuum cleaner itself rises even if it falls down during the cleaning operation, so that a highly usable vacuum cleaner can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel which is a traveling means of an electric vacuum cleaner.

[0002]

2. Description of the Related Art A conventional vacuum cleaner will be described with reference to FIGS.

An electric blower chamber 3 for accommodating a dust collecting chamber 1 for collecting dust in the front and an electric blower 2 for emitting suction air in the rear.
And a cord reel chamber 5 accommodating a cord reel 4 for supplying electric power to the electric blower 2 and the like, and the electric blower chamber 3 and the cord reel chamber 5 are divided by a cord partition 6 holding the cord reel 4. In the cleaner body 7 (hereinafter referred to as the body), an exhaust passage body 8 that covers the rear portion of the body 7 is provided behind the electric blower chamber 3. A dust bag 9 is held in front of the dust collection chamber 1, and an intake port 10 is provided in front of it.
Are formed. A caster 11 is provided in front of the lower surface of the main body 7, and a wheel 1 which is a traveling means of the main body 7 is provided at the rear.
2 is held on the side surface of the lower body 13.

[0004]

However, in the conventional electric vacuum cleaner described above, when the body 7 is swung around during the cleaning operation, the front of the body 7 is lifted and falls, There is a problem that the cleaner body 7 tends to roll over when climbing over a step, and the cleaner body 7 itself cannot naturally stand up once it falls, and it is necessary to raise the body body 7 each time.

The present invention is intended to solve the above-mentioned conventional problems, and provides an electric vacuum cleaner which is highly usable and can stand up even if the cleaner body 7 falls over during cleaning. It is an object.

[0006]

In order to achieve the above object, the present invention has a built-in electric blower that emits suction air, and a cleaner body having an outer shape of a substantially columnar shape or a substantially spherical shape, and the cleaner. The cleaner includes a pair of wheels that are traveling means, the center of gravity of the cleaner body is provided closer to the surface to be cleaned than the center of the outer shape of the surface of the cleaner body orthogonal to the transfer direction, and the wheels are on the extension line of the outer shape. Since the vacuum cleaner is arranged in the main body of the vacuum cleaner so as to be positioned within the arc, and the vacuum cleaner itself rises up even if it falls over during the cleaning operation, it is possible to provide an electric vacuum cleaner with high usability.

[0007]

According to a first aspect of the present invention, there is provided a cleaner main body having an electric blower for emitting suction air therein and having a substantially columnar or spherical outer appearance, and the cleaner. The cleaner includes a pair of wheels that are traveling means, the center of gravity of the cleaner body is provided closer to the surface to be cleaned than the center of the outer shape of the surface of the cleaner body orthogonal to the transfer direction, and the wheels are on the extension line of the outer shape. Since the vacuum cleaner is arranged in the main body of the vacuum cleaner so as to be positioned within the arc, and the vacuum cleaner itself rises up even if it falls over during the cleaning operation, it is possible to provide an electric vacuum cleaner with high usability.

According to the second aspect of the present invention, a cleaner body having an electric blower for emitting suction air therein and having a substantially cylindrical or spherical outer appearance, and a traveling means of the cleaner body are provided. And a center of gravity of the cleaner body is provided closer to the surface to be cleaned than the center of the outer shape of the surface orthogonal to the transfer direction of the cleaner body, and the wheels are tiltable inside the cleaner body. Moreover, when the wheel is tilted, it is arranged in the cleaner main body so as to be located in an arc on the extension line of the outer shape, so that the mounting width of the wheel can be wide, and the stability in normal use is stable. Since the main body is good and does not prevent the main body from rising up even when it falls, it is possible to provide an electric vacuum cleaner with high usability.

According to the third aspect of the present invention, the electric blower for emitting suction air is built in, and the shape of the surface orthogonal to the transfer direction of the cleaner body has one side substantially parallel to the surface to be cleaned and the one side. A cleaner body having a substantially isosceles triangle shape with the bottom as a base, and a pair of wheels that are traveling means of the cleaner body, and the center of gravity of the cleaner body is closer to the surface to be cleaned than the center of gravity of the substantially isosceles triangle. In addition, the wheels are arranged in the cleaner body so that they are located in a circle that passes through the outermost portion formed near the bottom of the substantially isosceles triangle, and they are quickly restored to their original state when they fall. You can go back.

According to the fourth aspect of the present invention, since the cushioning material is provided on the surface of the wheel, it is possible to prevent the floor surface, which is the surface to be cleaned, from being scratched when the main body rises.

According to the invention of claim 5 of the present invention, a cushioning material is provided on the outermost peripheral portion of the cleaner main body, so that the floor surface, which is the surface to be cleaned, is damaged even when the main body falls over. Can be prevented.

[0012]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

A dust collecting chamber 21 for collecting dust is provided in the front, an electric blower chamber 23 having an electric blower 22 for sucking air and a cord reel chamber 25 for arranging a power cord 24 are provided behind the dust collecting chamber 21. , Further behind it, the exhaust port 26
Is provided. Electric blower room 23, cord reel room 25
The exhaust chamber 28 is formed behind the cord reel chamber 25 arranged at the rear of the cleaner main body 27 (hereinafter referred to as the main body) forming the exhaust gas, and traps fine dust contained in the exhaust air from the electric blower 22 in the exhaust passage. An exhaust filter 29 for collecting is provided. A dust bag 30 is held by a buckle 31 in the dust collection chamber 21 in front of the main body 27, and an intake port 32 is formed in front of it. A dust collecting lid 33 is held above the dust collecting chamber 21. A lower main body 34 is held below the main body 27, and casters 35 are held in front of the lower main body 34 and wheels 36 are held in the rear thereof. The main body 27 forms an outline from the lower main body 34, the upper main body 37, and the dust collection lid 33, and the shape thereof is formed into a substantially circular shape (the appearance shape of the main body 27 is a substantially cylindrical shape or a substantially spherical shape) when viewed from the front. Has been done. Also the main body 27
By providing the center of gravity of the electric blower 23, which is a heavy object among the parts forming the above, from the center 27e of the circular arc 27d on the extension line of the surface orthogonal to the transfer direction of the main body 27 to the surface to be cleaned, The center of gravity is located closer to the surface to be cleaned than the center 27e of the arc 27d on the extension of the outer shape of the surface of the main body 27 that is orthogonal to the transfer direction.

The operation of the above configuration is as follows.

When the main body 27 is pulled around during the cleaning work, if there is a sudden change of direction or a step over the step, the main body 27 often falls, and in that case, when the main body 27 falls, on the extension line of the outer shape of the main body 27. The center of gravity of the cleaner body 27 is located above the center 27e of the circular arc 27d, and the state becomes unstable. The main body 27 rotates to stabilize. In this case, since the main body 27 is formed in a substantially columnar shape or a substantially spherical shape, the rising motion can be smoothly performed. Further, the wheel 36 has an arc 27 on the extension line of the outer shape.
Since it is in d, it can return to the original state smoothly without disturbing the rotation. Therefore, the main body 27 can always maintain a normal traveling state, and usability can be improved.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The center of gravity of the main body 27 is located closer to the surface to be cleaned than the center 27e of the arc 27d on the extension of the outline of the surface orthogonal to the direction of transition of the main body 27. It is formed in a substantially spherical shape. Further, both wheels 36 are configured to be able to incline inward. Further, it is arranged in the main body 27 so as to be positioned within an arc on the extension line of the outer shape when the wheel 36 is inclined.

The operation of this will be described with reference to FIG. From the figure, when the main body 27 falls over during the cleaning work, it becomes unstable. At this time, the main body 27 rotates to stabilize. The wheel 36 is an arc 27d on an extension of the outer shape of the main body 27.
Although it is located on the outside of the extension line of the wheel 36, the wheel 36 tilts inward, so when the wheel 36 touches the surface to be cleaned,
Falls inside the outer shape of the main body 27, whereby the main body 2
It does not hinder the rotation of 7 and returns to its original position, so that it can be smoothly rotated and returned to its original position, improving the usability during cleaning work.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIGS. The same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The main body 27 is provided with a main body 27 in which the shape of the plane orthogonal to the transfer direction is a substantially isosceles triangle whose one side 27a is substantially parallel to the surface to be cleaned, and a pair of wheels 36 which are the traveling means of the main body 27. The center of gravity of the main body is provided closer to the surface to be cleaned than the center of gravity 27f of the isosceles triangle, and the wheels 36 are two outermost points (27b, 27c) formed near the bottom side 27a of the isosceles triangle. ) Is arranged in the vacuum cleaner body 27 so as to be positioned within a circle passing through. As a result, when the main body 27 falls during the cleaning work, the main body 27 rotates to stabilize. In that case, since the main body 27 is formed in a substantially triangular shape, the original state can be smoothly returned. Therefore, the main body 27 is always
The normal traveling state can be maintained, and the wheel 36 can be smoothly returned to the original traveling state without hindering the movement of the wheels 36 while the main body 27 is rotating, thus improving usability.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The center of gravity of the main body 27 is located closer to the surface to be cleaned than the center 27e of the arc 27d on the extension of the outer surface of the main body 27 which is orthogonal to the transition direction, and the main body 27 has a substantially cylindrical shape. It is formed in a substantially spherical shape. Further, the wheel 36 holds the wheel 36 within the arc on the extension line of the arc 27d on the extension line of the outer shape. As a result, when the main body 27 falls during the cleaning work, the main body 27 rotates to stabilize. By holding the cushioning material 38 on the wheels 36 at this time, there is an effect that there is no fear of damaging the floor surface when the main body 27 rotates after falling over and rises, and the impact sound at the time of landing is mitigated.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The center of gravity of the main body 27 is located closer to the surface to be cleaned than the center 27e of the arc 27d on the extension of the outer surface of the main body 27 which is orthogonal to the transition direction. It is formed in a substantially spherical shape. Further, the wheel 36 holds the wheel 36 within the arc on the extension line of the arc 27d on the extension line of the outer shape. As a result, when the main body 27 falls during the cleaning work, the main body 27 rotates to stabilize. At this time, by holding the cushioning material 38 on the wheel 36 and the cushioning material 39 on the outermost portion of the main body 27, there is no fear of damaging the floor surface when the main body 27 falls and then rises by rotating, and at the time of landing. It also has the effect of reducing impact noise.

[0025]

According to the present invention, it is possible to provide an electric vacuum cleaner having a high usability that the vacuum cleaner main body 7 gets up upright even if it falls over during cleaning.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an electric vacuum cleaner showing a first embodiment of the present invention.

FIG. 2 is a view of the electric vacuum cleaner as seen from the front.

FIG. 3 is a front view of an electric vacuum cleaner showing a second embodiment of the present invention.

FIG. 4 is an operation explanatory view of the electric vacuum cleaner.

FIG. 5 is a front view of an electric vacuum cleaner showing a third embodiment of the present invention.

FIG. 6 is another view of the electric vacuum cleaner seen from the front.

FIG. 7 is a front view of an electric vacuum cleaner showing a fourth embodiment of the present invention.

FIG. 8 is a front view of an electric vacuum cleaner showing a fifth embodiment of the present invention.

FIG. 9 is a vertical sectional view of a conventional electric vacuum cleaner.

FIG. 10 is a plan view of the electric vacuum cleaner.

FIG. 11 is an oblique rear perspective view of the electric vacuum cleaner.

[Explanation of symbols]

22 electric blower 27 main body 27d arc 27e on the extension line of the outline of the plane orthogonal to the transfer direction of main body 27 center of arc 27 36 wheel

Claims (5)

[Claims] 1. A cleaner body having a built-in electric blower that emits suction air and having a substantially cylindrical or spherical outer appearance.
A pair of wheels that are traveling means of the cleaner body are provided, and a center of gravity of the cleaner body is provided closer to a surface to be cleaned than a center of an outer shape of a surface orthogonal to a transition direction of the cleaner body, and the wheels have the outer shape. An electric vacuum cleaner arranged in the cleaner body so as to be positioned within an arc on the extension line of the electric vacuum cleaner. 2. A cleaner body having a built-in electric blower that emits suction air and having a substantially cylindrical or substantially spherical appearance.
A pair of wheels that are traveling means of the cleaner body are provided, and a center of gravity of the cleaner body is provided closer to a surface to be cleaned than a center of an outer shape of a surface orthogonal to a transfer direction of the cleaner body, and the wheels are cleaners. An electric vacuum cleaner which is arranged inside the cleaner body such that the inside of the main body can be tilted and when the wheel is tilted, the wheel is positioned within an arc on an extension line of the outer shape. 3. A built-in electric blower that emits suction air, and the shape of the surface orthogonal to the transfer direction of the cleaner body is substantially isosceles triangular with one side being substantially parallel to the surface to be cleaned and the one side being the base. A cleaner body and a pair of wheels that are traveling means of the cleaner body are provided. The center of gravity of the cleaner body is provided closer to the surface to be cleaned than the center of gravity of the substantially isosceles triangle, and the wheels are substantially isosceles. An electric vacuum cleaner arranged in the cleaner body so as to be located in a circle passing through an outermost portion formed near a base of a triangle. 4. A cushioning material provided on the surface of a wheel.
The vacuum cleaner according to any one of 3 above. 5. The electric vacuum cleaner according to claim 1, wherein a cushioning material is provided on an outermost peripheral portion of the cleaner main body.